Cash-indicator.



N. 869,982. i PATEN'IED NOV. 5, 1907.

- J. PPEIFER.

CASH INDICATOR.

PPPPP o uxox rILnn Dno. 13, 1902.

PATENTBD J. PFEIFBR. CASH INDICATOR.

APPLIOATIOH I'ILED DEO. 13, 1902.

WITNESSES= *7 WWW .SY/4.4

NOV. 5, 1907.

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TTORNEYS PATBNTED NOV. 5, 1907.

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INVENTOR Xwf (BY TTORNEY-$ WTNESSES= No. '869,982. PATENTED NOV. 5, 1907. J. PFEIFER.

CASH INDIGATOR.

APPLIOATION }'ILED DEO. 13. 1902.

5 BHEETS-SKEI'LT 5.

WITNESSES UNITED JOHN PFEIIVER, OF vSPRINGFIELD, `OHIO.

CASH-INDICATOR.

- Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed December 13, 1902. Serial No. 135,058.

'l'o all whom it may concern:

Be it known that I. Jom.Y PFEIFER, a citizen of the United States, rcsiding at Springfield, in the county of Clark and State of Ohio. have invonted certain new and useful Improvements in Cash-lndicators` of which the following is a specification.

My invention relates to cash registers and money changers and more particularly to a machine for automatically calculating and indicating a cash transaction wherein a greater amount is tendered than the amount of the purchase; and as it will appear, my inventiobn may be combined with cash registers and money changers of'any well known type now in general use.

The object of my invention is to provide a 'machine that, in a given transaction, will indicate the amount tendered, the amount of the purchase, as well as the difference to be returned in change.

A further object is to provide an improved form of transfer mechanism Wher'eby the amount' of the purchase may be s'ubtracted from the amount tendered and the difference correctly indicated.

My invention consists of the constructions an'd combinations hereinafter described and set forth in the claims.

In the accompanying drawings which form a part of this specification` Figure l is -a front elevation of a machine ombodying my invention. Fig. 2.is a like elevation with the outside .casing removed, with some of the parts omitted and others broken away to more clearly show the construction. Fig. 3 is a cross section of the machine, some of the parts being omitted for clearness. Figs. 4 and 5 are details of the cash and change indicators with Operating and .dler 4racks for samo. -Figs 6 and 7 are like details of the change and purchase indicators. Fig. 8 is a Vdctail showing the Operating rack for the'change indicator thrown out of l gear. 'Fig 9 shows a dctail for throwing it into gear, and Fig. 10 for throwing it out of gear. Fig. 11 is a detail of means for looking the key-rods. I

Like parts are represcnted by similar lettcrs of reference in the several vil ws.

To illustrate my invention I have shown a machine employing three banks of keys with indicators and necessary Connections for the rcspective banks arranged in a suitable frame. Each bank is provided With two sets of keys for the purposc herinafter described, and to distinguishl them I will call one set cash and the other purchase keys' The sides, al. of the frame are supported by the base, a, and are connocted by cross-pieces` a'l, al, al, and a. The indicators I have preferably shown in the form of disks having figurss from 0 to 9 thereon in the usual manner. Said dilks each have an Operating pinion attached thereto, both disk and pinion being mounted on spindles attached to said cross-pieces. Disks, b, with pinions, bl, attached th'ereto I have shown mounted on the cross-piece, 112, to indicate the amout received; disks, c, with` pinions, cl, attachedthereto I have shown mounted on the cross-pieec, al, to indicate the amount of the purchase, and disks. d, with pinions, dl, I have shown mounted on the ci'oss-piece, v(13, to indicate the difference between the amount rcceivedv and the amount of thepurchase or the. amount of change due the purchaser. In suitable guides on the crosspiece, az, I mount racks, bl, adapted to mesh with the pinions, bl, of the indicators, b, said racks being provided at their lower ends with bifurcated frames, one

arm, ba, of Which is adapted to normally rest on a projection, bl, of swinging plates, bs, hinged to uprights, b, fixed in the base of the frame and having springs, bl, to normally hold the frames, bs, in position for the arms, bll, to rest on the projection, bf. The other arm,

bs, 'of said bifurcated frame is provided With a later-al rods having buttons, blll, at their outer ends to indicate their value, are mountedon suitable slidcs in the crosspieces, aland all, and extend rearwardly through perforated bars, b, attached to the base of the frame. They are held in normal position by springs, bll, and terminate in their normal position 'Within sufilcient distance of the swinging-plates, (15, so that When a cash key is depressed it will contact with and move theswinging plate, thus moving the projection, bl, out of the path of the arm, bil, and permitting the racks, b, to fall until arrested by the end' of the key-rod that has been. dcpressed. This inovement of the racks` b", which rnesh with the pinions, bl, on the indicawrs, b, will turn said indicators to display a number of like value to the number of the key deprcssccl; anti the' dler racks,'bll, resting on the projection 'of thearm, b', will also drop a like distance with the racks. bl, and through the idler gears, bl2, and pinions, dl, will turnthe disks, d, to display a like number as the disks, b.

I will now proceed to describe the operationof the purchase keys and their disks, and, in this connection, the'further movement of the disks, d, to display the amcuit of change due the purchaser. 4

In suitable guides on the cross-Pieces, ia* and a', I I

mount racks, o l, adapted to me'sh with the pinions, cl,

ends with franu-s which f will more fully dt seribt-.wheti l eome to a description of the transfer mechanism. lt is suflieient now to say that to one end of a pivoted bar, cs, of said frames, l pivot raeks, ei, adaptod to mesh with the idler gears, 1112, opposite the idler rat-ks, b. Springs, cs, normally hold the rat-ks, (74, outv of mesh with the idler gears, b. I hinge at c, to the crosspieee, as, a downwardlyprojectingswinging-plate, 67, having,r a later-al projeetioii, cs, on which the bar, a, of the frame at the lower end of the raek, 62. normally rests. v

The keys, c, whieh I call the purchase keys. 'as hcretol'ore indieated, and which are preferably in the 'I form of rods havingr buttons, Cl, at their outer ends to 'purr-hase key is depressed it will contact with and move said frame. thus movingY the projeetion, rs, out ol' the path of the bar, ::3, and permitting the raeks, c? and 1:4, to fall until arrested by the end of the. key-rod that has been depressed. 'This movement of the rat-ks. c, which mesh with the pinions, c', of the iudieators, c, \rill.turn said indicators to display a number of like value to the number of the key deprt ssed: and thcracks, 1'4, dropping an equal distance and being then in mesh with the idler geats, bl, as will be hereinafter described, said gears meshing with the pinions, (Il. of the indieators, d, will turn said indieators in a reverse direetion to the direetion they have been previously turned by the dropping' of the idler rac-ks, b", a suffieient distance to display a value equal to the'difference between the value of the cash and purchase key depressed St will be displayed by both the cash and change indicators'. butwhen a purchase key of the value of ti is depressed the purchase indieator will display G and the change indicator will be turned back six notehes to display 3. It will bc understoodahe rat-ks, pinions and idler gears are so adapted that in theirmovement they will turn the disks to display. through the openings, b". 013 and d', in the frame, the proper numerals foi'the keys depressed. A v

The parts which-I have thus` far described are alike in each bank of tlrevmaehine. I now come to a description of parts which affect the several banks.

A shaft, r, extends transversely across the machine and is journaled in the side frames, al, and has downwardly projectingl arms. '01,' spring-pressed outwardly by springs 0'5, the lower ends of said'arms being turned to contact with the rear sides of the swinging-plates. 07, of each bank. A cross-bar, 02. is provided with longitudinal slots. H, through which serews, (4. are attaehed to the eross-piece, as, permitting' a longitudinal movement of said bar. Laterally projecting arms, c,

They are held in normal position by springsv` direetion to press the arm. 1:2. against the lever, u, by a spring, 0", interposed between the Iside frame. and a coll-ar, a. A stop, el, is provided to limit the movement of theshaf'v, in the'opposite direction, which 'movement given .by the means hereinafter described.

The construction is such that Whenever appnrchase key in any of the banks is depressed it: will, through the arms, el, and the levtr, c, move the cross-bar, c`-`, so that the arms, a, will engage the rack-bars, of, and throw them into mesh with the idler wheels, b, to turn the change indicators'back to' indicate the change due the purchase-r, as hercinbefore described'.

l now come to a description of the transfer mechanism. whereby the amount of the purchasemay b'e stil)- tracte'd from the-amount tenderedand satid amounts, as well as the difference indi'cated, when itis necessary to carry units of a lower denominat-ion to those of a higher denomination.

Referring to the frame Vat the lower endof the rat-k bars, t-'-', which I have deseribed as having pivoted bars, (13, with racks', trt, pivoted at one end' thereof, the' other end of said bar is provided with a notch, c, and ashoulder, c, on which one arm, cl, of a crank, c", normally c', draws the rack-bar, c, down until the crank-arm,l

cm, rests in the bottom of the notch, a, for the purpose of moving the change indicator one additional figure. lt is obvious the rack bar, c4, Will `drop by its own weight,` but the spring, c'l, is preferably provided to assist; in the operation. The construction just deseribed is in both the tens and hundreds banks but obviousl'y it is not necessary` in the units bank. The crank, c", is moved as stated in the following manner: Rearwardly extending shafts, f, forthe units and tens banks are journaled in .the frame of the machine and are providediwith upwardly extending arms, f l, the outer ends of which rest against the lower ends of the idler racks, b", said raeks being adjusted to the idler goars so that when 'the change indicator passes the numeral 9 and indieates zero, the idler rack will beelevated to such height that the arms, f l, will be released. Levers, fz, fixed to the shatts, f, and levers, f 3, pivoted at]4 to the frame of the machine, are pivoted togethor'by a link, f 5. When the arms, j, are released, as described,

springs, f, draw the levers, fa; against arms, 612, of

cranks, cl7, 'of the next higher denominatidn, which throws the arm, cm, into the notch, c, for the purpose of allowing the rack, of, to move the change indicator of the next higher denomination one figure, as hereinbefore described. Laterally extening arms, f', on the arms, f 1, arrest the idler racks after the arms, fi, have been released and permit their return to normal position, as hereinafter described. l v v For the purpose of loc'king the keys'in their depressed position, I provide a transverseshaft, g, suitably journaled in the frame and extnding across all the banks4 'of the machine, and I journal onthis shaft rocking de.-

tcnts, g',.fo r each bank, i;o ngage lugs or Stops. g'l, of the cash keysyand I lalso journal on said shaft rocking detents, ga, for each bank, to engage I ugs or stopa, g, of

said detentsto litt them out of eng-agement with said stops by turning the shaft, g, in the manner hereinafter described. t

The several parts and devices are returned to their normal position by the following dcscribed mechanism. Tilting levers, li, are pivoted to the respective side frames of the machine, their frontr ends being joined by a cross-bar, hl, said levers and cross-bar being preferably in one U-shapod pieee as shown; and an operating 1 handle, hg, is fixed to tlu front end of one of said levers. A vibrating-frame having eross-pieces, h3 and h*, and end-pieces or nprights, lrl, adapted to slide in suitable guides, h'l, in the respeetive side 'frames of the machine, are connected With the levcrs, lt, by screws, hl, Working,r in slots, Its, of the respective levers. Down Wardly-pi'ojecting tingers, 11'", having shoulders, hlll and hll, extend from the cross-picee, h, so that when the vibratingframe and the bifureated frame of the raeks, bl, are in their lowest position, the shoulder, fill, Will engage the bifur- ('ated frame and lift it until the arm, bs. of the bifurl eated frame rests on the projeetion, ffi, of the swingingi plate, bi, and the \'ibrating frame continning its upi \vard movei'nent, the shoulder, hl, engages a crossl piece, ul'l, andthe fingers, h, are moved out of` the path of the bifureated frame and the raeks, bl, and the idler racks, bll, are free to fall when the swinging plate, b'l, is moved, as hereinbefore deseribed. Forwardly projecting Iingers, h, attached to the cross-piece, hl, extcnd under the frame earrying the raeks, c'-' and c*, so that when the vibraring frame is elevated it will carry said racks npwardly untilr a bar of the frame for said racks resis on the projeetion, dl, of the swinging-plate, cl. The lever can then bc released and it and the vibrating frame will return to their normal positions by gravity.

The transfer meehanis'm is returned to normal position by means of forwardly projecting pins, hlll, extending from the eross-piece, h'l, which engage laterally projeeting arms, lil l, fixed to the shafts,f, so that when-the vibrating frame is elevitted it will throw the arms,` f l, on said shaft baek into normal position to be held by the idler rat-ks, b'l. b

l \vili now deseribe the means employed to move the sli-alt.v r, longitudinally against the tension of the l pring'. all, to permit the springs, 1:5 and el'l, to operate to thron' the raek-bars, 4, out, of engagement With the idler gear-s, b", the spring, ('ll, being of greater strength than the spring r'l. l

On the rear side of the base of ,the frame of the machine l pivot an upright, k. the upper end of which l provide with a later-al projeetion, proferably in the form of a roller` kl, which, when the vibrating frame is operated, `will engage anti travel around a cam, kg, fixed to the eross-pieee, h, of said frame. A link, kll, pivoted t: said upright. is pivoted at its other end to an arm. ki of a i-rank. k, in suitable journals on a. side \rame of the machine. the other arm, kll, of said eiank eontaeting.with an end ot' the shaft, (r, so that when the pivoted upright is moved by the travel of the roller, kl, about the cam, 761, the a rm, k, will move the shaft, (I, longitndinally against the tension of the spring, all, and thereby perinit the racks, (o, to be thrown out of engagement as deseribe A spring, kl, attached to the upright, k, tends to pull the roller, kl, over the top center of the tam in one direction and the link, 1:3,, being under tension of the spring, ell, tends to pull said roller over the bottom center of the cam in th'e opposite direetion and in this manner the roller is guided in its travel about said cam. But as the spring, el'l, is much stronger than the spring, kl, the link, kil, is provided with an elongated slot, k, where it is pivoted to the arm, ki, of the crank, so that when the' roller passes-over the top center of the cam the spring, ell,is'1iot exerting any tension on the pivoted upright..l

For the purpose of unlocking the keys When held in their depressed position by the rocking detents on the shaft, g, I attach to the forward end of one of thel tilting levers, h, a downwardly projecting bar, hl'l, to which I pivot an arm, hl, the free end of which is held in normal position against a pin, hll, by a spring, hlll. The free end of said arm, lil, in its normal position extends over the end of an arm, hl, fixed to the shaft, g, so that when `the bar, h, is depressed by moving the operating handle-the arm, hlll, will contact \vith the arm, h, and turn the shaft, g, and the ingers, g5 and g, fixed to said shat't will lift the roeking detents, gl and g, out of engagoment with the lugs or stops, g"' and gl, of the keys, springs, al2 and bl'l, returning said keys to normal position. The spring, hl', permits the arm, hl, in its return movement to pass the arm, hlll.

The buttons; bl, on the cash keys, bl, and the buttons, clll, on the purchase keys, cll, have like numerals thereon, the numerals in the units bank being from 1 to 9 inclusive, the numerals in the tens bank being 10 and mu1tiple`s of 10 up to and including 90 and the numerals of the hundreds bank being from 1 to 9 inclusive, all as shown. in Fig. 1. I

The operation of the machine is as follows: Take, for example, the transaction indicated in Fig. 1, wherein a purchase amounting to $327 has been made and 395.00 tendered, the difference, $1.73, to b returned in change. If the previous transaction on the machine has not been eanceled, the vibrating frame is .tirst'elevated by depressing the handle, hz. the 'several raeks in the respective banks are carried up and the indit-at-ors all set at zero; said'racks being retained in their positions by the respective eatches before deseribed. All the other parts of the machine will likewise be rturned to their normal positions in the manner before deseribed. Upon releasing the lever, the lever and frame will return back to their normal positions by gruvityr Then 4deprestsing the $5.00 cash key, bl, of the hundreds bank, the raek7 IF, will drop until arrested by the end of said key and the eash or amount received indieatorwill display; and the idler meks, bll, falling a like distance with the rack, ba, will turn the idler gear, bl'l, and cause the change indieator, n', to also display. Now depress the Spurehase key, rll. of the lmndreds bank, the 20 purchase key of the tens bank and the 7 purchase key of the units bank and the raeks, e* and (-4 of each bank will be released and will drop until arrested by the ends of the key-rods of the keys depressed, the raeks. 2, thus turning the purchase indieato'rs, r', to display $3.27; and the rat-ks, c, of the several banks will operate as follows. The rack, 04, of the units bank will turn the change indica-tor of that bank from zero to display the nuineral 3 and in so doing the idler raek of said bank will be lifted to release the. transfer arm.f l, so that the arm, el. ot the crank, c", Will be thrown into the notch, cl', of the pivoted bar, c, permitting the nick-bar, t, of the ten:

'rack has mov'ed the idler'gear in one directionto cause '-thechange indicator of this bank to display 5; and the depression' of the ,533.00 purchase vkey would cause the rack, 04, to norn1a1lyfturn the idler gear in the opposite direction, sufficiently tocause the change indioator to displaythe figure 2, but the rack, '04, being vgiven-an ference or amount of change, .$1.73.

vincreased'drop to the extent of one figure, the numeral 1 will be displayed; and thus' by the operation described the indicators display the amount received, $5.00, the amount of the purchase, $3 .27, and the dif:

i I have 'shown the-mamama m the form of diska, but

it is obvious-I may employ other forms of indicators and I'do not' wish 'to be understood as limiting myselfto the form of indicators shown. Having thus described my inyention,. I V claim:--

1. The combination 'with indicators of Operating devices and ntermediate mechanism adapted to move upon being released by said devices, whereby -two amountsbf an in-. dividual transaction and their diflerenc'e will be displayed; and means to return said devices to normal position, substantinllyasspecified.

2. The combination with anindicatorfor amount re-' ceived. an indicator 'for-,amount purchased, and an inter.- mediate indicator' Adapted to be oper'ated inone direction by the first mentioned indicator and in the opposite direction by the second mentioned indicator, means for holding same in indicating position and means for simultaneously1 .returning ali indicators to normal position, for .the purpose specified.

3. The combination of one set of indicators and a second set of indicators located below the first set of indi-' cators, :in intermediate set of indidators opernted in one direction by the first mentioned indicators and operated in the opposite direction by the second mentioned indicators and means for simuitaneously re'turningallfindicators to'normal position, for the purpose specified.

4. The combination of an indicator for the purpose of indicating one part 'of a transaction, a second indicator for the' purpose of indicating'nnother part of the same 'transactioln and an intermediate indicator :for indicating the diiferences in the two parts of said transaction, means for Operating said last mentioned indicator in unison with v said first-mentionedindieator andnieans for reversinglthe movement of :said last ,mentioned indicator and moving same in unison with said second mentioned'lndioator, means I'or holding said indicators .in indicatlng position but `adapteri to permit all to be returned simultaneously, for the pnrpose specified. 'V

5. Inl a cash register, the combination of an indicator for indicating one part of a transaction, with a second in-v dicntor for-ir'ic'iicntingl another part of the same transactlon, an intermediate indicator located between said first and second indicators and adapted to indicate the difierence between the' amounts or numbers indicated. by"the first indicator and that indicated .by the second indicator, means 'for moving said intermediate indicator in one d irec tlonl in unison with said first indicator and folflmoving same in the opposite direction in unlsonl with said second f.

indicator, means for holding ali said indicators in indicab,v

ing position, :lnd means forl returning sam simultnneously keys, said mechanism including means a'dapted` 'to inove one of saidindi'cators in opposite dlrections, whereby upon the successive depresslon of a'key in each set, two amounts will be displayed, substantially as specified.

7. The combination with indicators, of two sets of inger all. and adapted tebe controlled in part by each of said keys, saidmechanism' including racks adaptcd to move one like value with the keys depressed and their difference will vbel displayed, substantially as specified; 8. The combination 'with indicators', of two sets of ilnger 'toalL andV adapted to becontrolledjin part by each of said ndaptedto move in and out ,of operativel-relation, wherebyl upon the 'successive depressio of a key in eaeh'set two amounts of like value with' the keys .depressed und their diflerencewillbe displayed, substantially as speliied.

The combination .with 'indicators vand 1 seif-acting a'ctna'ting mecha'nism therefor, of two sets of Vfinger keys of like valnes adapted to release and control saidmechanlsm, whereby upon' the successive depression of a key in each and -their difference will bedlsplayd, substantiallyas specified. i

ger keys' of like value, land I self-acting intermediate mechanism common to ali and adapted, to be releasedad controiled by each of. said keys,^whereby upon the 'suecessive depression of a -key in each set, two amounts of,llke

bedisplayed, substantially as speciflev 11. The combln'a'tionnwith i ndlcators, of two,` sets of fing'er keys of' like value, and intermediate mechanism adapted to move upon` being released by saidkeys, whereby upon the depression of a key inveach set, two amounts of like disp1ayed,-and means to return said mechanism to normal position, substantially as specified.4 s i 12. The combination with indicators, of two sets-of fin? ger keys of like value and intermedlate mechanism adaptanism being common to ali of said keys and limited in its in eac set, two amounts oflike value with the keys dei pressed and their difference will be'displayed, and means to return said meehauism to vnormal position, substan'tially as spe'cified.

13. The comb'inatlon with indicators, of two sets of finL gel" keys, vandintermedia'te mechanismfcontrolled by said keys, opernting by gravity to move'said indicators; means to release said mechanism, whereby two amounts and their differencewlll be displayed by 4said indicators.

14. The' combination withlndicators,'of two sets of finger keys and lntermediate mechanism, Operating by grav-l lty to 'movesaid indicators, meanszto hold said mechanlsm in -an elevated position, and a movable frame to elevate and release-said mechanism subject to the control ofl said keys, whereby two amounts and their difference will be displayed by said indic'ators.`

finger keys, lntermediateniechanism, Operating by g'ravity to move. said indlcators, including means adapted to move `holdfsaidjmechanism in 'an'elevated position, devices to levate and release said inechanism, subject to the control saidvkeys-, whereby two amounts and their difference li .be displayed -by saidindicators,v v

,"key`s, intermediate mchanism, controlled by the denression 'of-.said keys,"op`erated-by gravity to move. said ,position and' said meohanism in an' elevatod position, fzmjansto e-'evate and release said moehnilm'lubjoct to the mmm of like value with the key depressed and their difference.

keys of like value, vand intermediate mechunismjcommonto' keys, said .mechanism including racks adapted to move one' `of said indicators in opposite directions, one of said--racks set, two amounts of like value'with the keysdepr'essed 10.' The combination with i ndlcators,-of two sets jofiflng.

value-with the keys depressed and their difference willA be v ed to move upon being released by said keys,.`saidl mech'-' to hold said mechanism in an elevated position, and means 15; The Lcombin'ation withzindicators.. of t`wo -sets of.

l'one -.of }said indicators .in opposite directions, lmeans to.

'I 'he co'mbination with indicator's, of two sets of.

flnlatorsL'devices to hold said keys ,in their dopreued* keys' lof like value, and lntermediatemechanism common value with' the keys depressed and theirdifference will,

movem nt thereby, whereby upon the'depression of a key 17. The combination with units, tens and hundreds banks of keys. each bank consisting of a set of cash keys and 'a set of purchase keys of like value, oi' indicators for each of said banks representing corresponding vaiucs. and intermediate mechanism. including devices adaptcd io carry units ofa lower denomination to those of a higher denomination. \vhereby upon the successive depression of a caslrkey and a purchase key in any one ur mori- 'of the respective banks. t\vo amounts of like value with the cash and purchase keys depressed and the amount of their difference \vili he displayed by said indicators.

IS. The combination with units, tens and hundreds banks of keys. each bank consistinf,r of a set of cash keys and a set of purchase keys of like values. of indicators for each of 'said banks representim.r corresponding valucs. iutermedlate mechanism to normally` move said`indicators in accordance \vith the keys depressed and adapted ai, predeterlnined intervals to move one of the indicators for the tens and hundreds banks an additional distance. \vhereby upon'the successivc depresslon of a cash key and a purchase key in any One or more of the respective banks. two amounts of like value with the cash and purchase keys depressed and the amount of their diifcrence \vili be displayed by said indicators.

and hundreds banks an additional distance, whereby upon the sucressive depression of a cash key and a purchase key in any one or more of the respective banks, two

amounts Oflike value with the cash and purchase keys depressed and the amount of their difference will be displayed by said indicators.

20. The combination with units, tens and hundreds banks of keys, each b ank consisting of a set of cash keys and a set of purchase keys of like values. of indicators for each of said banks representing corresponding values, iutermediate mechanism, including devices to normally move one of the indicators in each bank in opposite directions in accordance with the value of the cash and purchase key depressed. one number of said devices in each bank being adapted to engage and disengage with said last named indicators and at predetermined intervala to move an additional distance, wherehy upon the successive depression of a cash key and 'a purchase key in any one or more of the respective banks. two amounts of like value with the cash and purchase keys deprensed and the amount of their difference will be displayed by said indicators.

21. The combination with units, tens and hunreds banks of keys, each bank consisting of a set of cash keys and a set of purchase keys of like values. 'of indlcators for each of said banks repreoenting corresponding, values, intermediate mechanism operatedby gravity to move. said indicatoro and adupted to carry units of a lower denomination to those of a higher denominatlon, means to hold said mechanlsm in an elevated position, an-. devices to elevate and release said mechanism subject to the control of said keys, -whereby upon the successive depression of a cash and purchase key in any one or more of said banks and the release of said mechlniam, two amountsand their difference will be displayed by said indicators.

22. The combination with units, tens and hundreds banks of keys each `'mnk consisting Of a set of cash keys and a set of purchase keys of like vaiues, of indlcators for each of said banks representing corresponding values, intermediate-mechanirm operlted by gravity to move said indicators, two members of said mechanism in each bank adapted to normally move one indicator in their respective banks in opposite directious ln accordance with the cush and purchase keys depressed, one of said members being adapted to engage und disengnge with said last named l indicators and ai predetermined intervals to move an additional distance. means to hold said mcchanism in an eleraicd position, and deviges io elevaie and release said mechanism subject to the\control of said keys. \vhcreby upon the successive depression of a cash and purchase key in any one or more of said banksfiyvo amonnts of like value io the cash and purchase key dcpressed and the amount of their difference \vili bc displayed by said inti- (alors.

23%. The comhination of units, iens and hundrcds banks of keys. each bank consisting' of a set of cash keys and a set of'purchase keys. in'dicators i'or each bank to display the amount received, thc amount of purchase and the amount of change, intermediate devices between said cash keys and amount received indicators \vith auxiiiary devices to move the change indicator in one direction, intermediatc devices between said purchase keys and the amount of purchase indicators with auxiliary devices adapted to be throvvn into engagement \vith and move said change indicators in the opposite direction, means actuated by the depression of a purchase key in any One or more banks to throw said last named auxiliary devices into engagemeut \vith'all Of said change indicatorsz and means to ihroyv said devices out of engagement. snbstantially as and for the purpose specified.

24. The combination of units. tens and hundreds banks of keys. each bank consistinghr of a set of cash keys and a set of purchase keys, indicators for each bank to display the amount received. the amount of purchase and the amount of change, intermediate mechanism, Operating by gravity` connectlng the amount received indicators \vith said cash keys, with aux'iliary devices moving therewith to move the.change indicators in one direction. intcrmedlate mechanlsm operated by gravity connecting the amount of purchase indicators with said purchase keys, with auxiliary devices moving therewith, adapted to be thrown into -engugemen t,with and -to movesaid change indicators in the opposite direction, means actuated by the depression of a purchase key in any one or more banks to throw said last named auxiliary devices into e'ngagement -with all of said change indicators, means to give, at predetermined inter- Ivals, an increased movement to'one or more of said last named devices, means to hold said mechanisn and devices in an elevated position, and devices to elevate and release said mechanism and auxiliary devices subject to the control of said keys, whereby upon the successive depression of a cash and purchase key in any one or more of said banks. two amounts of like value to the cash and purchase keys depressed and the amount of their difference will be displayed by said indicators.

25. The combination of a set of indicators, a series of keys, a set-of Operating devices for said indicators released by said keys, a second set of indicators and two sets of actuating devices for said second mentioned indicators, a third set of indlcators and a set of Operating devices for eame,vmeans for causing said actuatlng devices to move in unison with each set of Operating devices, and means for giving one one of the sets of said actuating devices additional predetermined movements independent of the movement of its corresponding Operating device, for the purpose specified.

26. The combination of indicators and keys for different denominations, Operating devices for the indicators of each denomlnation, a second set of indicators for different denominatlons and .a plurality of actuuting devices for each indicator,v means for causing said actuating devices to move in unison with the Operating devices and means for causing one of the actuating devices for each lndicator above the lowest denomination to move an additional distance independent of the Operating devices, for the purpose specified.

27. The combination Of indicatorswith keys, operatiniu devices for each indicator released by said keys, actuating devices supported by said Operating devices and adapted to move therewlth', a spring normaily under tension for okusing said actuating devices to move an additional distance, means fOr disconnccting the actuatlng and Operating de vices and adapted to cause said spring to give said actuat ing device an additional predetcrmined movement, and means for winding up said spring and connecting said 'vices for veach indicat'or,` means for causing said actuatingjievices to move in unison with both sets of 'operating Vdevices, .means for disconnecting one of said actuating devices from "its corresponding Operating '*device, and

4meansf'for- Vgivingv said 'actuating device an additional movement: independent of its corresponding Operating de- -vice, fo`ry the purpose specified." V

20. vThe combination of a set of .indicatorsya series of keys, a set'of Operating devices for moving said indicators, v

'hend 'indicator mechanisms may operate to effect the de-v one' for eac'h indicatOr, .an -additionaiset of indicators l and a vset ofactnating devices for 'moving said last men- 'tiQned indicators in `reverse ldirection from the. movement of Vsaldiirst mention'ed indicators, means for causingthe actuating' and operating devices to move in unison and means -ffog'causing'f an additional move'ment of said ,last mentioned indicators-i .a-reverse-dire'ction from themovement of the -flrst mentioned indicators and independent' of' the lmo'vement' of the-firstmentioned,indicators for the .i purpose specined;A

30. The'jcombination of a set of-indicators; a series .off keys, s set-ot opel-'sting devices for'rotfatingsaid indicatoraone'for each indicator, 'an additional' set o f inicators and s set' of actusting devices for -said Vlast mentioned Vindicators',` means for'causing the-two'sets of indicatdrs to I rotats in unlson but in opposlte directions; mean'sofor causing nn additional move'ment of 'the last mentioned indicatorl independent of the flrst mentioned indicators, lmeans for-throwing the actuating devices Vout of engagement with'w `the last mentioned indicators, fc'r 'the put-pone specified..

I 31L In-ac'ash register-,'mlnuend indicators, subtrahend. indl'cators; r'em'ainder indicators, means for cansing thei remalnder indic'ators to move in one direction in corre- .spondence with the -minuend indlcators, and then in.the

reverse Adirection in orrespondence with theisnbtrahen 1 indicators, and means for resetting all the indicatorsto lero,at 'each operation of the machine v l32.`In a machine of the character'described, for teml -porariiy indicating value'received, value re'tained-and value returned in 'the form of change in` any' special transaction, the combination of a remainder indicating drum; means for moving said drum fin oneidirection cor-il responding to the minuend, and meansfor moving :the

' druni-in theV opposite dirction correspondingl to the subtrahend, and means for readjusting the several indicating drums to the starting point-on the heginning'of an indication. I

33. In a4 cash indicator, a set of`minuend indicators', a s'et ofsubtrahend indicators, a, motor for Veach set of indicators, a series of keys for 'each set of indicators ndapted when depressed to' release said motors to permit keys. v

In testimony whereof, vI have hereunto set my handthis' them 'to operate Vsaid indicator's and determine the-l 'seanse movei'nnt thereof, a set of remainder indicators, means for causing the'remainder indicators to move in one direction in 'correspondencc With the minuend indicators and-then in a reverse 'direction in correspondence with the subtrahend ndicators, and means for rcsctting ali the indicators to zero zmd also resetting the motors at eiich operation of the machine. I

In a machine having minuend indicator mechanisrn, a subtrzihend indicatoi'mechanism, a m oto'r comprised in each of said mechanisms, a remander indicator mechanism, a hank of keys for releasing and permitting the motor for 'the .minuendl indicator. mechanismv to voperate ,said m echani/sm and determine the movem'ent'thereof, a separate'hank 'of keys forcreieasing and permitting lthe motor for the subtrahend indicator meciianism to operate said mechanism and de'jsrmne the movement thereof, andmeans whereby the operation of the minuend and subtrasired'adjnstment of the-remainder indicator mechanisnn '35. in a `machine ofthe character descrihed for tem- -pol'ariiy indicating value received, value retained and value returnedin the form of change in any special transaction, the combination-of a remainder indicator drum, a series of minuend and a series of subtrahend keys,

a -motor released and controlicd by the minuend keys for "corresponding to the subtrahen'd, 'and means for readjiust-l ing said drum to the' starting point) and resetting the said motors. w v 36'. A machine for temporarlly iniicatingvaluel received,

value retained and value returned in the form of change in each lspecial transaction, and consisting of a minuend ina remainder indicator mechanism, aseries of keys for the minuend indicator mechanism and a seriesof keys for .said

subtrahend indicator m'echanism, motors released and vcontroiied by said keys'for moving said minuendand subtrahend indicator mechanisms, and means whereby the operation of the minend and suhtrahend indicator mechanisms' may operate the remainder` indicator mechanism, and

the starting point and res'etting said motors.

.'37. The combination with a series of keys representingfl the amounts of sales, a' second series of keys representing said change indicator adapted to be released andV controlled by the respective series of keys to cause said indilca'cor to he set to a position representing the difference between the -amounts set up on the respective series of Witnessesr x Cnss. I'.j WnncH, i i f Pnncv NoR'roN.

the a'xnounts paid in, a'change-in'dicator; and motors for 

